Improvement in steam-engines



- of the bearing O to the trunnion, are intended to come genital 51am sa f- @fthe @eine Www/- 13mm raamt No. 86,965,

dated February 16,1869.

IMPROVENIENT IN sTEAMmNGmEs.

The Schedule referred to inv these Lett-ere Patent and making part of the same.

To all whom 'it may concern v Be it known that I, L. ANDERSEN, of Chebanse, in the county of Iroquois, and State of Illinois, have invented new and useful Improvements in Oscillating Steam-Engines; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification. This invention relates to improvements in oscillating steam-engines, the object of which is to simplify the construction of the same.

It consists in the arrangement of as will be hereinafter described.

Figure 1 represents a perspective View of an'engine providedwithm improvements; Y

Figure 2 repr sents a sectional elevation of the cylinder, showing the arrangement of theports in the trunnion. 'v

Figure 3 represents a cross-section, taken on the line'xxof lig. 1. v

Figure 4 represents the trunnion-bearing, showing the steam-passages and the valve-seat.

Figure 5 represents a plan view of the face of the valve. Figure 6 represents a section'of the same, taken on the line y y.

Similar letters parts.

A represents thc'trunnion, provided with the steamportsaandb; K

G represents the tunnion-bearing, provided with the passages c and rl, and can'dj, through which thesteam is admitted to and vexhausted from the cylinder; and

D represents the valve, having-the steam-receiving orifice g, with'the lateral chambers gand gfand the exhaust-ports h h; also, with lateral chambers The face of the said valve works on the face ofthe bearing O, and is held in position thereon by the holding-plate E, in such a manner as to be oscillated freely by the lever F.

The passages for each port aand b, from the face the valve and ports,

n of reference indicatecorresponding as near to' each other, at the junction with -the trun- 'port for'the lower end of the portsa and b, so that they soon as the cylinder passes nion, as rthe width of the will begin -to' take steam as tlie perpendicular line.

When the valve stands in the position `indicated in fig. 1 by the lever F, the passages will be closed, and the engine will lbe at rest, as the position of the chambers g gz will b e in the plane of the axisof the t'runnions, and between the passages; but, when it is turned in either direction, the engine will be set in motion If turned to the right, communication will'be opened between the'chamber g. and g2 and the ports e and d, and the engine will run to the right, e being-the steamcylinder, and j; the exliaust-port-for' the same, while d becomes the steamport, anda, the' exhaust for. the upper end and, if the valve be turned inl .the opposite direction, the engine will also operate in -th opposite direction, the vports acting reversely.

. The chambers in the face ofthe valve communicating with the exhaust-ports are of suiiicient length-to open communication with the ports, to form .theexhaustl passage, before the communication of the chambers g and g' with the steam-ports lwill be formed, and will allow the steam to exhaust from the cylinder after itl has been stopped, the valve being moved to the pcsition for that purpose.

By. the change of the valve, as above described, the

be readily set vinto motion in either direction, and, att-he same time,

engine may the speed may be regulated, as desired, by the amount of the openings of the ports.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is-

The arrangement of the ports a b in the trunniongearing C, and the valve .1), constructed as herein set orth. A

me, .this'27th day of July, 1868:

L. ANDERSEN.

Witnesses:

W. J. HUN'rnIgU ANDREW Konronn.

IThe above specification of .my invention signed by- 

